(05-15) 17:20 PDT San Francisco -- Eager Bay Area buyers propelled the region's median home price above a half-million dollars in April - its highest point in almost five years - reflecting a market continuing to rebound, according to a real estate report released Wednesday.

The $510,000 median for the nine-county Bay Area represents a jump of 30.8 percent from a year ago and a record 17 percent above March's median price, said DataQuick, a San Diego real estate service that produced the report.

"The Bay Area is getting back to normal fast," said Andrew LePage, a DataQuick analyst. "We've had just the right ingredients for big increases in the median and other price measures. We've got drum-tight inventory of homes for sale, an unprecedented level of investors chasing homes, interest rates lower than most of us alive have ever seen, and changes in the types of homes selling and where they're selling."

The median represents a midpoint, meaning half of Bay Area homes sold for more than $510,000 and half sold for less. It is influenced both by actual appreciation in home values and by a changing mix of homes sold.

The Bay Area median peaked at $665,000 in summer 2007. During the real estate downturn, bargain-basement foreclosures and short sales helped drag the median down to a low of $375,000 in March 2009. Now, with far fewer distress sales and more high-end homes changing hands, a similar dynamic is buoying it. DataQuick said the median has regained 59 percent of its losses.